220355744306 has 4 divisors (see below), whose sum is σ = 330533616462. Its totient is φ = 110177872152.

The previous prime is 220355744291. The next prime is 220355744317. The reversal of 220355744306 is 603447553022.

It is a happy number.

220355744306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603447553022 = 2 ⋅301723776511.

It can be written as a sum of positive squares in only one way, i.e., 141947344081 + 78408400225 = 376759^2 + 280015^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55088936075 + ... + 55088936078.

Almost surely, 2^220355744306 is an apocalyptic number.

220355744306 is a deficient number, since it is larger than the sum of its proper divisors (110177872156).

220355744306 is a wasteful number, since it uses less digits than its factorization.

220355744306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110177872155.

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 220355744306 in words is "two hundred twenty billion, three hundred fifty-five million, seven hundred forty-four thousand, three hundred six".